1999 S70 AWD 417 583998 KarlaKat Ariane

[abscate]

New to me 1999 Sedan in beautiful Nautic Blue
97400
26.5 mpg at 65-70 DC NYC run
Radio code 6116

New battery 11-24
Tire wheel evaluation

Oil
Coolant
ATF, replaced 8 liters 12-2024
FIlters
> yanked the funky air and cabin filter and replaced with Volvo, FCP R835528362, 12-2024
Plugs
Coil evaluation

Ariane wheels

Items to work over
New turn signal switch
Drain fill ATF. 15 DEC 7 liters new @97400
Very slight radiator seep , passenger flange?
P1618 at highway speed , TC lockup solenoid?
Bulb out

2Apr25 new wiper blades. 26 mpg highway

Lock cylinder replaced
Fob and keys made at Randall
Heater core eval?
Front right tire soft?

11 aug Albany port Jeff. 150 miles, 30 mpg
No codes presented.

31 Aug new Bosch single electrode plugs , coils (original)

Slight surging on load. Turbo control valve swapped, surge gone. Ordered new TCV
Surge came back with swapped tcv a week later
Took some data on boost and throttle angle
Diagnosis here


P0440 intermittent, measured purge valve resistance at 29.2 ohms
Right top taillight intermittent- replaced bulb 1157?

Nov12 dead right front foot, bad Ariane wheel ding 195-65 15 size
Sealed rim about 1/3 circumference, moved RF to RR. - tire code 1708

Jan 2026 99350
Coolant leak ar right radiator seam? Heater core?
Check function of coolant light
Mapped ECC damper positions with knob in this thread
viewtopic.php?p=674140#p674140

Feb 13 2026 99350 replaced heater core with new Nissens
Feb 19 replaced coolant level sensor FCP removed paperclip jumper from connector 99450
viewtopic.php?t=107741